Subatomic particle
The crossword clue "Subatomic particle" is answered by PION, a 4-letter entry. Used 39 times across 24 distinct years; most recently in 2026; first recorded in 1975. It appears in 12 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
PION
4 letters. See every clue for this answer on the PION answer page.
Used 39 times across 24 distinct years; most recently in 2026; first recorded in 1975. It appears in 12 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this collection link to their own answer page.
- BOSON (11 uses in xd)
- QUARK (6 uses in xd)
- POSITRON (4 uses in xd)
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Tiny particle - ATOM, used 96 times
- Particle - ATOM, used 82 times
- Unstable particle - MUON, used 23 times
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